William Worrall Mayo was an English American medical doctor and chemist. He is best known for establishing the private medical practice that later evolved into the Mayo Clinic. His sons, William James Mayo and Charles Horace Mayo, established a joint medical practice in Rochester in the U.S. state of Minnesota in the 1880s.
- Occupation
- chemist, politician, gynecologist, editor
- Position held
- member of the State Senate of Minnesota, Mayor of Rochester, Minnesota
- Citizenship
- United States, United Kingdom of Great Britain and Ireland
- Born
- May 31, 1819